SYNTHESIS OF 2-IMINO-4-THIAZOLINES, 2-IMINO-4-ALKOXYTHIAZOLIDINES, THIAZOLES AND 4-IMIDAZOLIN-2-ONES FROM ALPHA-HALOMETHYL KETIMINES

摘要

A variety of heterocycles, including 3,4-disubstituted-2-imino-4-thiazolines, 3,4-disubstituted-4-methoxy-2-iminothiazolidines, 2,4-disubstituted-thiazoles, 2-amino-4-substituted-thiazoles and 1,5-disubstituted-4-imidazolin-2-ones, were synthesized from alpha-chloromethyl and alpha-bromomethyl ketimines by condensation with potassium thiocyanate, thiourea, ammonium thiocyanate and potassium cyanate. [References: 17]